/Engine/Plugins/Runtime/Metasound/Source/MetasoundEngine/Public/MetasoundBuilderSubsystem.h
Adds a node to the graph using the provided MetaSound asset as its defining NodeClass. Returns a node handle to the created node if successful, or an invalid handle if it failed.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Audio|MetaSound|Builder", DisplayName="Add MetaSound Node From Asset Class", Meta=(ExpandEnumAsExecs="OutResult")) [FMetaSoundNodeHandle](API\Plugins\MetasoundEngine\FMetaSoundNodeHandle) AddNode ( const [TScriptInterface](API\Runtime\CoreUObject\UObject\TScriptInterface)< [IMetaSoundDocumentInterface](API\Plugins\MetasoundFrontend\IMetaSoundDocumentInterface) > & NodeClass, [EMetaSoundBuilderResult](API\Plugins\MetasoundEngine\EMetaSoundBuilderResult) & OutResult )